Are you wondering what type of metal detector is best for food industry? If YES, here are 10 best metal detectors for food industry in 2021. In this era where metal particles can easily be found in food due to the different processes food passes through during processing and packaging, the use of metal detectors has become very important.

Metal detectors for food are used for the purpose of consumer protection as mandated by the regulatory authority in the food and drinks industry. Despite maximum care, metallic contamination of food products during the production process cannot be fully excluded.

Metal particles that enter the product during the production process or are already contained in the raw material may cause serious injuries to consumers. No doubt, any food production company that wants to stay in business and avoid unnecessary claims from damages would need to get the best metal detectors.

The truth is that metal detectors for food provide effective protection against ferrous and non-ferrous metals (aluminium, stainless steel, et al). As a matter of fact, metal detectors can be installed in every step of the production process and can be used for many different applications, e.g. for the inspection of bread and bakery products, meat and sausage products, fruit, vegetables, dairy products, spices, sugar, and the likes.

Please note that in addition to protecting consumers from ingesting metal particles from food, metal detectors also are used to protect machinery from wear and tear. Even the smallest metal particles can lead to machinery failure. Expensive repairs and production downtimes are the consequences, often followed by revenue decrease.

Having said that, it is important to state that there are several types of metal detectors that operate with different detection methods in the food industry, and here are some of the best metal detectors you can get for the food industry.

What are the Best Metal Detectors for Food Industry in 2021?

  1. Corrosive Resistant Magnetic Liquid Trap

Many industries are tasked with handling highly acidic or corrosive materials as part of their standard product flow, and it is a challenge to find metal separation products that can maintain a high level of performance while also being able to resist corrosion.

Bunting has responded to the needs of customers working in the food, chemical, and oil industries and developed a new corrosive resistant magnetic liquid trap in order to provide a solution to this problem. The CR-MLT is made from a special alloy material that holds up against acidic, corrosive materials, resulting in a drastically extended lifespan compared to the traditional liquid trap. It resists corrosion and pitting that would otherwise cause severe damage to other traps over time.

The CR-MLT is able to handle even the most difficult to flow products, utilizing a 2” diameter magnetic load to achieve complete reach out. It has a built in manual self-cleaning ability, meaning that once the flow of product has been turned off, the operator simply needs to remove the lid and use the metal detectable wiper to clean off the center magnet cartridge.

  1. METRON™ 07 CI Metal Detector With Bulk Sense Kit

The meTRON™ 07 CI coil Metal Detector with Bulk Sense Kit, is a tunnel style metal detector that features a special construction designed specifically for a bag inspection. It is an ideal metal detector for handling large bags of flour, powder, and other dry bulk products.

When inspecting 50-100lb bags of dry product, the meTRON 07 CI Metal Detector with Bulk Sense Kit can detect 316 stainless steel as small as 2.0mm, and ferrous and non-ferrous metal particles as small as 1.5mm. This impressive detection capability means that even the tiniest metal particles will be sensed and rejected, protecting your product purity and upholding your brand reputation.

The exclusive construction of the meTRON™ 07 delivers the smallest metal free zone possible and shields the search head from outside interference. With custom aperture sizes available, we can ensure the meTRON™ 07 metal detector will be a perfect fit for your application.

It is important to remove metal contamination from your product flow in order to protect the other processing equipment in your facility. This prevents equipment from sustaining costly damage that would otherwise result in downtime and expensive repairs.

Bunting’s superior sensitivity means that even the tiniest metal particles will be sensed and rejected, protecting your product purity and upholding your brand reputation. For the highest standard of metal detection, choose Bunting.

Key Features:

  • Detects ferrous and non-ferrous metal as small as 1.5mm.
  • Detects 316 stainless steel as small as 2.0mm.
  • Ideal for handling large bags of bulk dry products, such as flour and chemical powders.
  • Exclusive construction shields the search head from outside interference and delivers the smallest metal free zone possible.
  • Custom aperture sizes ensure the metal detector is the perfect fit for your application.
  1. HF Drawer Magnets

Bunting’s HF Series Drawer Magnets provide powerful magnetic separation suitable for mechanical and gravity flow applications in all industries. HF Series Drawer Magnets are equipped with high-power magnetic cartridges, configured with arrangements of two or more cartridge trays that are staggered to increase contact with the product stream.

The material moves in a zig-zag pattern from one cartridge tray to the next, achieving exceptionally thorough cleaning as a result of intense magnetic separation. HF Series Drawer Magnets are available in utility, food, and sanitary constructions with multiple cleaning options and stainless steel housings. We are able to supply custom transitions to match your round, square, or rectangular spouting.

Interestingly, HF Series Drawer Magnets are available in manual standard, manual self-cleaning, pneumatic self-cleaning, and pneumatic continuous self-cleaning models. All models are designed to facilitate effective removal of tramp metal contamination, including fines while being easy to operate and maintain.

HF Series Drawer Magnets come standard with two rows of NUHI™ cartridge magnets; with additional rows available for handling heavier product flow. They are constructed with heavy-duty 304 stainless steel, incorporating full-seam, air-tight welds.

HF Series Drawer Magnets feature an easy access rear door for quick maintenance, and are available with inside dimensions of 8” x 8” to 24” x 24”. HF Series Drawer Magnets come standard with FDA-compliant metal detectable gaskets and grommets.

  1. Pneumatic Style Metal Separators

Bunting’s pneumatic metal detection and separation equipment detect and rejects all ferrous metals, non-ferrous metals, and stainless steel metal within enclosed pipe systems. They are ideal for implementation in pressure, suction, or vacuum conveyor lines. All systems are easy to operate, maintenance free and quick-acting.

By providing efficient pneumatic metal detection and separation that is easy to install within your facility, you will be able to protect your product purity as well as the other equipment in your facility. If metal contamination is allowed to remain in your material, it can cause severe damage to the other equipment in your facility that leads to costly repairs and downtime.

  1. Tunnel Style Metal Detectors With Conveyors

Tunnel Style Metal Detectors is customizable depending on your application needs, for use in the food, grain and milling, and powder and bulk industries. Tunnel style metal detectors can be used to inspect raw foods or for final inspection in a packaging line, to ensure there is no metal in the product before shipping to the customer.

The combination of the Metal Detector Conveyor and MeTron™ C Metal Detection provides customers peace of mind. These units can be custom built to exact specifications and are ready for installation. Please note that the following items for the Metal Detection Conveyor can be customized:

  • Stainless steel for washdown environments, or painted steel for non-washdown environments
  • Direct drive reducers and motors
  • Controls with start/stop buttons or variable speed with encoder
  • Adjustable height leveling pads or castors
  • Modular belting or Fabric belting
  • Reject options include Belt Stop, Belt Stop, and Reverse, Air Blast, 90° Pneumatic Pusher, 45° Sweeper Arm, Retracting Nose Pulley, Decline Nose Pulley, or Flap Gate on End of Conveyor.
  • ATEX Explosion Proof Rating available.
  1. Gravity Free-Fall Metal Separators

Another excellent metal detector is the Bunting gravity free-fall metal detector designed for customers in the food, powder, bulk, grain, and milling industries. Bunting metal detectors automatically detect and reject all ferrous metals, non-ferrous metals, and stainless steel.

Bunting’s gravity fall metal detectors are designed to swiftly reject contaminated material, removing it from your product stream. The reject mechanism minimizes the loss of good products while ensuring contamination is thoroughly removed.

Bunting’s gravity free-fall style metal detectors work without interrupting your process, keeping your operations timely and your product metal free. Bunting gravity fall metal detectors protect your product integrity, your customers, your reputation, and your equipment.

  1. Pipeline Style Metal Separators

The Pipeline Style Metal Separators series, come in two styles, the pipeLINE™ system is used for liquids or pastes in pressure conveying lines. The meatLINE™ system is also used for ground meat but it uses simple integration with a vacuum filter.

pipeLINE™

pipeline07 Designed to remove ferrous and non-ferrous metals from liquids, pastes, or slurries. Various sizes are available, and works well with many different types of products.

  • Custom designed system fits any pipeline application requirements. Built to your specifications and comes ready for installation.
  • 3-way separation mechanism is suitable for both pneumatically-driven pig cleaning and Clean in Place (CIP).
  • Features 05 or 07 controls, the most advanced metal detection controls, delivering superior results with ease of use.

meatLINE™

Product-Bunting’s meatLINE™ is Meeting New Challenges in Metal Detection-Bunting-NewtonThe meatLINE allows to detect and separate ferrous and non-ferrous metals from ground meat products as they are pumped toward stuffers or patty formers. The uniquely designed reject mechanism will remove metal contaminants without damaging the integrity of the ground meat.

  • Detects and separates any type of metal, encapsulated or free
  • Fits all commercial vacuum fillers
  • Reject mechanism can be easily disassembled and cleaned without the need for tools
  • All reject components are secured with a loss prevention device
  • Pressure washer safe
  • Easy and fast operation through Touch Screen Display with a self-explanatory menu structure

Please note that all components are made of stainless steel or food-safe plastic. It features a responsive, powerful, and permanently maintenance-free pneumatic drive for a long lifespan.

  1. THS/21-THS/MS21 Series Metal Detection

THS/21-THS/MS21 Series Metal Detection is one of the highest levels of metal detections available in the market today.

THS/21-THS/MS21 Series Metal Detection is exclusively developed by CEIA, the world’s largest manufacturer of metal detectors, multi-spectrum technology uses many frequencies simultaneously to optimize sensitivity to all metal contaminants and reduces product waste by minimizing product effect errors.

The world’s only multi-spectrum metal detector provides unique detection capability and extreme sensitivity of magnetic, non-magnetic, and even stainless steel metal contaminants and is also available in a USDA-approved design.

Ideal applications of THS/21-THS/MS21 Series Metal Detection:

  • Available with conveyed (in-line), pumped, or free-falling configurations
  • All manner of food products
  • Strong product effects products, such as cheese, fresh meat, and poultry
  • USDA-approved option
  • Integrate with Ishida VFFS snack food bagmakers
  1. THS/MN21 Ferrous-in-foil Metal Detection

THS/MN21 Ferrous-in-foil Metal Detection is a reliable detector of ferrous and magnetic metal contamination for products in aluminum trays, foil, and wrappings/bags. With THS/MN21 Ferrous-in-foil Metal Detection packaging materials will not get in the way of quality control.

With levels of sensitivity, immunity to interference, and response speeds designed to satisfy the strictest quality control requirements of foil and aluminum packaged products, the CEIA THS/MN21’s wide bandwidth allows maximum-sensitivity operation at both high and low transit speeds and is suitable for a wide variety of products.

Ideal Applications for THS/MN21 Ferrous-in-foil Metal Detection:

  • Foil packaged products
  • Foods in aluminum trays
  1. THS/PL21-THS/PLV21 Pipeline Metal Detection

THS/PL21-THS/PLV21 Pipeline Metal Detection (CEIA’s) pipeline inspection system for pumpable liquid and viscous products detects and rejects magnetic, non-magnetic, and stainless steel contaminants. As a matter of fact, THS/PL21-THS/PLV21 Pipeline Metal Detection is specifically designed for metal contamination in products transported by a pipeline.

This system features fast rejects valve drive response to reject the contaminant without slowing down the product flow. Ideal Applications for THS/PL21-THS/PLV21 Pipeline Metal Detection:

  • Cheese
  • Soup
  • Meat, poultry, and seafood
  • Preserves
  • Pharmaceutical
  • Meat vacuum filling applications
  • Available in multi spectrum technology

Frequently Asked Questions

1. What Metal Detection Standards Are Used In The Food Industry?

Metal detection standards used in the food industry are;

  • Metal Detection Program
  • Metal Detection Sensitivity
  1. How Do Metal Detectors Work In The Food Industry?

Metal detectors operate by transmitting an electromagnetic field from the search coil into the ground. And in the process, any metal objects around the electromagnetic field will be energized and transmit an electromagnetic field of their own.

  1. What Is An Industrial Food Metal Detector?

An industrial food metal detector is an electromagnetic sensor which can possibly detect the minutest metallic partials during production flow. And it is capable of detecting both ferrous and non-ferrous metals which are specifically designed for the food industry.

  1. How Do Food Metal Detectors Work?

Metal detectors work by transmitting an electromagnetic field from the search coil into the ground. Any metal objects targeted within the electromagnetic field will be invigorated and then re-transmit an electromagnetic field of their own, thus making the metal detectable.

  1. What Types Of Metal Detectors Are Used In Food Packaging?

Types of metal detector used in food packaging are;

  • In-Stock Machines
  • P remade Pouch
  • Vertical Form Fill Seal
  • Stick Packaging
  • Bag Styles
  • Carton Packaging.
6. Do Metal Detectors Detect Food?

No! Metal detectors can only be used during food production process in order to protect consumers, by detecting metallic contaminants and preventing the contaminated food from getting to the retailers marketing stores.

  1. At What Point In The Production Line Should I Place A Food Metal Detector?

In a finishing product, a food metal detector can be placed at the end of line for a final product inspection of metal contaminants. It can also be used in line to protect other machinery that is downstream.

  1. Where Should I Put A Food Metal Detector?

A food metal detector can be positioned at the end of line for a final product inspection of metal contaminants.

9. Which Food Metal Detector Manufacturer To Buy From?

METTLER TOLEDO Safe-line is a food metal detector manufacturer to buy from, because he offers a wide range of metal detection systems and integrated conveyors to all the food packaging requirements.

Joy Nwokoro